Frederick hymans



F. HYMANS.

GOVERNOR.

APPLICATION FILED AUG-26.1916.

1,309,63 1 Patented July 15, 1919.

J /L Wg W.

FREDERICK HYMANS, OF GLEN RIDGE, NE COMPANY, OF JERSEY CITY, NEW JERS WJERSEY, ASSIGNOR TO OTIS ELEVATOR EY, A CORPORATION OF NEW JERSEY.

- GOVERNOR.

Specification of Letters Patent.

Patented July 15, 1915-).

Application filed August 26, 1916. Serial No. 117,010.

To all whom it may concern:

Be it known that I, FREDERICK IIYMANS, a citizen of the Netherlands,residing in Glen Ridge, in the county of Essex and State of New Jersey,have invented a new and useful Improvement in Governors, of which thefollowing is a specification.

My invention relates to an improvement in speed governors, and isdesigned particularly for use in elevator service for the purpose ofreleasing a safety device in the event of the elevator car exceeding acertain predetermined speed. The principle employed is inertia, and Ihave provided a pendulum or weight carried on one end of a flat springwhich weight engages a certain part of the governor when the latter isrotatin Should the car speed exceed the predetermined amount, themechanism will be set into operation to release gripping means forgrasping the governor rope to apply a safety device. IVith myarrangement I have done away with bearings and 'pins so that the actionof the governor is not dependent in any sense upon the care which may betaken of the governor after it is installed. The advantage of such anarrangement is obvious, as after once being installed in a building noattention need to be paid to it at all as is the case with governors nowgenerally in use for the purpose for which this governor is designed.

In the accompanying drawings, Figure 1 is an elevation of the governorwith certain parts in section, and Fig. 2 is aview at right angles tothat of Fig. 1.

Referring to the drawings in detail, 1 designates a governor sheavemounted for rotation on a shaft 2, the latter being carried by anysuitable base or support 3. The governor rope 4, which is wrapped aroundthe sheave 1, is fastened to suitable mechanism carried by the car, notshown, which mechanism will be set into operation to apply a safety whenthe car speed exceeds a predetermined limit. A support 5 is also carriedby the base 3 and to it is secured by means of bolts 6 and 7 a flatspring 8, the latter carrying at its lower end a weight 9. Carried bythe weight 9 is a roller 10, mounted for rotation on a shaft 11. A lever12 having a projection 13 is mounted to swing on the said shaft 11. Theroller 10 is adapted to engage the face of a cam 1-1 carried on theshaft 2 and rotating with governor sheave 1. This cam is shown as havingtwo depressions 1 1. A spring 15 having one end fastened to the weight 9and the other end to the lower end of the lever 12 is provided to holdthe lever 12 normally in the position shown in Fig. 1. Members 1.6secured to the sheave 1 and of which I have shown two are provided,these members being adapted to engage the projection 13 formed on thelever 12 when the car speed is excessive. There should be the samemunber of members 16 as there are depressions 14 in [he cam 14, thenumber being limited only by space conditions.

The action of the governor is as follows: Under ordinary runningconditions the pen dulum or weight i) has a swinging movement due to theroller 10 'lollow'ing the irregular face of the cam 14, and by reason ofthe shape of the cam and the location of the members 16, the members 16will pass by the projection 13 formed on the lever 12. Should, however,the car be running at an excessive speed, and therefore the governorsheave 1, the roller due to the inertia of the eight or pendulum 9 willnot follow the irregular face of the cam 14, but will ride past thedepressions 1 1, and the projection 13 of the lever 12 will be engagedby some one of the members 16. The lever will therefore be rocked aboutthe shaft 11 and its lower end will. engage a bell crank or trip 17 andthe same will rotate about its pivot 18 to release a segmental gear 19which meshes with a similar gear 20 and the same will rotate by gravityabout their respective shafts 21 and and cause the governor rope to begripped, and the latter will then operate the mechanism carried by theelevator car to slow up or stop the same.

From the foregoing description it will be seen that I have provided agovernor which is very simple both in structure and operation and at thesame time effective.

It is to be understood that the governor rope may be connected to anydesired mechanism and that the gripping means 19 and 20 may be of anydesired type, the type here shawn being merely by way of illustration toshow one embodiment of my invention. I desire therefore not to belimited to the the exact details and arrangement of parts herein shown,as others skilled in the art might make various changes therein withoutdeparting from the spirit and scope of my invention.

What I claim is new and desire to secure by Letters Patent of the UnitedStates is 1. In a governor, the combination of a rotatable member, agovernor rope movable therewith, a member carried by said rotatablemember and rotating therewith, means to-retard the rope and an inertiacontrolled member engaging the rotatable member and adapted to operatethe retarding means to retard the governor rope.

2. In -a governor, the vcombination of a a governor sheave, a governorrope running over said sheave, a member carried by said sheave, means toretard the rope and inertia controlled means adapted to engage saidmember carried by said sheave when the speed of the governor exceeds apredetermined amount to operate the retarding means to retard thegovernor rope.

3. In a governor, the combination of a governor sheave, a governor roperunning over said sheave, a member rotatable with the governor sheave,means to retard the rope an inertia controlled means adapted to engagesaid rotatable member, and a member carried by said governor and adaptedto be engaged by the inertia controlled means when the latter is out ofengagement with the said member rotating with the governor sheave tooperate the retarding means to retard the governor rope.

4. In a governor, the combination of a governor sheave, a governor roperunning over saidsheave, a cam rotating with the governor sheave, aninertia-controlled member engaging said cam normally, means operable toretard the motion of the governor rope, and means to engage the inertiacontrolled member when the speed of the governor exceeds a predeterminedamount to set into operation the means for retarding the governor rope.

5. In a governor, the combination of a governor sheave, a governor roperunning over said sheave, a cam rotatable with said governor sheave, aninertia controlled member normally engaging said cam, a pivoted membercarried by. said inertia controlled member, and means carried by thegovernor sheave adapted to engage said pivoted memher when the speed ofthe governor exceeds a predetermined amount to retard the governor rope.a

6, In a governor, the combination of a governor sheave, a governor roperunning over said sheave, a cam rotatable withsaid governor sheave, aweighted member having a pendulum movement, suspension means for saidweighted member, said weighted member normally engaging the face of saidcam, and means carried by the weight and by the governor sheave adapted{O engage each other due to the inertia of the weighted member when thespeed of the governor exceeds a predetermined limit, to retard thegovernor rope.

7. In a governor, the combination of a governor sheave, a governor roperunning over said sheave,a cam rotatable with said governor sheave, )2],weighted member, suspension means for said member comprising a spring, aroller carried by said weighted member adapted normally to engage theface of said cam, a member carried by said governor sheave and rotatabletherewith, a lever carried by said weighted member normally out or" thepath of said member carried by .the governor sheave, and in the path ofsaid member when the speed of the governor exceeds a predetermined limitto retard the movement of the governor rope.

8. In a governor, the combination of a governor sheave, a governor roperunning over said sheave, a cam rotatable with said governor sheave, aweighted member, sus pension means for said member comprising a spring,a roller carried by said Weighted member adapted normally to engage the.face of said cam, a lever also carried by said weighted member andadapted to rotate about a pivot, a spring resisting movement of thelever about its pivot, a member car} ried by the governorsheave androtatable therewith adapted to engage said lever when the speed of thegovernor exceeds a. predetermined amount,.the lever beingswung into thepath of said"member' cafrid by thesheave dueto the inertia oftheweighted member and the parts carried thereby.

In testimony whereof I have signed my name to this specification in thepresence-of two subscribing witnesses. j

FREDERICK HYMANS.

Witnesses: Y

ERNEST L. GALE, J r., JAMES G. B THELL.

Copies of this patent may be obtained for fivecents each, by addressingthe Commissioner of Patents," Washington, D. C. r

